NV · Allergy Season Guide
Las Vegas Allergy Season Guide
PollyMap is actively seeking a qualified local collection partner in Las Vegas. This guide uses regional climate and historical allergen data while we recruit a local host.
PollyMap is actively looking for a qualified local partner in Las Vegas.
We're recruiting a qualified local allergy clinic, naturopathic clinic, university, environmental health professional, or other qualified organization to become the official pollen collection partner for Las Vegas.
Become the Official PollyMap Partner for Las VegasSummary
PollyMap does not yet have weekly collected pollen data for Las Vegas. This guide is based on regional climate patterns and historical allergen data while we recruit a local collection partner. Tree pollen peaks in spring, grass pollen in late spring and early summer, and weed pollen in late summer and fall.
Local allergy guide for Las Vegas
Las Vegas shares Nevada's a hot, arid desert climate with long dry summers, mild winters, and very low annual rainfall. at 2,001 ft elevation.
Las Vegas at 2,001 ft elevation sits within Nevada's broader regional climate.
In Las Vegas, tree pollen — including Mulberry, Olive, Mesquite — typically dominates from late winter through spring. Bermuda grass is the most common warm-season pollinator, and Ragweed drives the largest fall pollen load.
Las Vegas's local mold profile includes Alternaria, Cladosporium, Aspergillus. Spore counts tend to peak after rainfall and during the warm, humid portion of the year.
Local weather — temperature, rainfall, wind, and humidity — drives day-to-day pollen levels. Dry, windy days following warm weather typically produce the highest counts, while heavy rain temporarily clears the air.
Las Vegas monthly allergy calendar
Typical month-by-month intensity for the four major airborne allergen categories in Las Vegas.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tree | Mod | High | V.High | V.High | High | Mod | Low | Mod | High | High | Mod | Low |
| Grass | — | Low | Mod | High | High | V.High | V.High | High | High | Mod | Low | — |
| Weed | Low | Low | Mod | Mod | High | High | High | V.High | V.High | High | Mod | Low |
| Mold | Low | Low | Mod | Mod | Mod | Mod | High | High | Mod | Mod | Low | Low |
Most common local pollens — weeds
Most common airborne molds
Current PollyMap data for Las Vegas
Official PollyMap Partner in Las Vegas
Frequently asked questions about allergies in Las Vegas
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Related guides
State Guide
Nevada Allergy Season Guide
Nearby city
Henderson Allergy Season Guide
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Reno Allergy Season Guide
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North Las Vegas Allergy Season Guide
Nearby city
Sparks Allergy Season Guide
Library
Pollen species library
Library
Mold species library
Reports
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Partners
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